18111009

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2389}}^1$

素因数の和:2437

約数の個数: 24

約数和(自身を含む): 29138880

約数和(自身を除く): 11027871

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2389, 2527, 7167, 7581, 16723, 45391, 50169, 136173, 317737, 862429, 953211, 2587287, 6037003, 18111009]

約数ペア:

[(1, 18111009), (3, 6037003), (7, 2587287), (19, 953211), (21, 862429), (57, 317737), (133, 136173), (361, 50169), (399, 45391), (1083, 16723), (2389, 7581), (2527, 7167)]